From xorloser's blog:
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Everyone has heard about the Xbox360 bans that stop a console from connecting to Xbox Live, however not many people realise that Xbox360 consoles can also be revoked. Below you can find a list of all the currently revoked consoles at the time of the Fall'08 system update release. Read on to find out why and how an Xbox360 gets revoked and what effect it has.
Fall'08 Console Revocation List Contents
This is a list of the Console IDs of the 433 Xbox360 consoles that had been revoked when the Fall'08 update was released.
WHY?
There are many reasons why your Xbox360 could get revoked, but generally it means you have done something to **** off MS. So the best way to keep from being revoked? Don't do anything liable to **** off MS. An example of a cause for revocation is the public sharing of your gamesaves or other similar files from your Xbox360 hard drive. This includes making publicly available "resigned" versions of these kinds of files. In order to be revoked you have to have done something that involves your Console ID so that MS has the ID required for revocation.
HOW?
Revocation is done through the use of Console Revocation Lists (CRLs) such as the list posted above. If your console's ID is present in the revocation list, then your console has been revoked. There are two types of CRLs, static and dynamic.
A static list refers to a list that is saved onto the flash inside your Xbox360. This list is updated when system updates are performed on your console. The Fall'08 update contains an encrypted version of this list in the file "$SystemUpdate\su20076000_00000000\data.bin". When the list is installed onto your console another layer of encryption is added using your Xbox360's unique fusekey and the result is saved to a crl.bin file on the internal flash.
A dynamic list refers to a list that is sent to your console when you connect to Xbox Live. This way an updated revocation list can be employed without requiring a system update.
SO WHAT?
So what does it mean to be revoked? Will I even notice or care?
From what I can see so far being revoked means that your console loses its "license to sign". Data that is generated locally on your Xbox360 gets signed by a key unique to your Xbox360. This data includes Gamer Profiles and Saved Games. Being revoked does not mean that you can no longer sign this data, just that other Xbox360s will no longer recognise anything that your Xbox360 signs.
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